campbell's. it's amazing what soup can do. >>> the website realclearpolitics is one of the places that aggregates poll numbers and offers averages for how specific races are going and specific states. based on those averages realclearpolitics changed its ranking of five different u.s. senate races. since the end of the democratic convention. prior to the convention, they listed these three states as leaning republican in senate races. they listed arizona and nevada and wisconsin as all leaning republican. well, now those are all moved into the tossup category. they no longer lean republican. now who knows. before the democratic convention, the two states that -- the two states they had considered tossups, too close to call, were ohio and michigan. well, now they have been shifted into the leans democratic category. so they've shifted five senate race since the conventions and all of the shifts have been toward the democrats. a political scientist named larry sabido at the university of virginia a